Gold carboxylates and process for preparing the same
AssigneeMooney Chemicals, Inc.
InventorThomas E. Nappier
Life of this patent
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Abstract
Gold carboxylates and a process for preparing gold salts of organic carboxylic acids are described. The gold carboxylates are represented by the formula ##STR1## in which R represents hydrogen or an organic group of valence y and x, y and z each represent a positive integer such that x=y.multidot.z/3. The process comprises reacting an alkali or alkaline earth metal salt of an organic carboxylic acid with a gold salt in an organic liquid which at least partially dissolves the alkali and/or alkaline earth metal salt, the gold salt, and the desired gold carboxylate product, but is not a solvent for the salt formed between the alkali or alkaline earth metal and the anion of the gold salt.
Claims25
A method of preparing gold salts of organic acids comprising
- (A) preparing a mixture of
- (1) at least one alkali or alkaline earth metal salt of an organic carboxylic acid comprising at least 2 carbon atoms,
- (2) at least one gold salt having an anion other than the carboxylate anion of (A)(1), and
- (3) an organic liquid capable of at least partly dissolving the at least one alkali or alkaline earth metal salt of an organic carboxylic acid (1) and the at least one gold salt (2), but wherein a salt formed between the alkali or alkaline earth metal of (1) and the anion of (2) in the mixture is sufficiently insoluble in the organic liquid to drive the reaction in favor of the formation of the gold salt of the carboxylic acid;
- and
- (b) maintaining the mixture (A) at a temperature below the decomposition temperature of components (1), (2) and (3) and gold carboxylated product for a period of time sufficient to form the gold carboxylate.
A method of preparing gold salts of an organic acid consisting essentially of the steps of:
- (A) preparing a mixture of
- (1) at least one alkali or alkaline earth metal salt of an organic carboxylic acid having from about 2 to about 30 carbon atoms,
- (2) at least one gold chloride, and
- (3) an organic liquid capable of at least partially dissolving the at least one alkali or alkaline earth metal salt of an organic carboxylic acid (1) and the at least one gold chloride (2), but wherein a salt formed between the alkali or alkaline earth metal of (1) and the chloride of (2) in the mixture is sufficiently insoluble in the organic liquid to drive the reaction in favor of the formation of the gold salt of the carboxylic acid;
- and
- (B) maintaining the mixture (A) at a temperature in the range from about 0.degree. to about 150.degree. C. for a period of time sufficient to form the gold carboxylate.
Dependencies are inferred from the claim text.